Tailstock turret



March 6, 1945. ZUELLlG 2,371,014

TAILSTOCK TURRET Filed May 1, 1943 5 Sheets-Sheet l I m eutor March e, 1945. E ZUELUG 2,371,014

TAILSTOCK TURRET Filed May 1, 1943 5 Sheets-Sheet 2 By 2mm z'z en zwell- March 6, 1945. ZUELUG 2,371,014

TAILSTOCK TURRET Filed May 1, 1945 5 Sheets-Sheet 5 *1- N Q Q Fiz'yene Z weZZ?,

Inventor March 6, 1945 ZUELUG 2,371,014

TTTTTTTTTTTTT ET Filed May 1, 1343 5 Sheets-Sheet 4 March 6, 1945. E. ZUELLIG TAILSTOCK TURRET 5 sheets-sheet 5 Filed May 1, 1943 Inventor Fzgez e Zz'oe 22 y WWI/we; E ema 2 Patented Mar. 6, 1945 UNITED:-

PATENT. I

2,371,014; p runner Eu nezueiii Hamilton, m

enhancement. erial No. 485.3477 scam L'Z r 48l This invention relates to new and useful-im provements in tailstock:rturrets by means; of which any engine lathe, on legs or bench, can be converted to a turret lathe or'modified screw machine, quickly and with but. a, minimum amount ofefiort. V l

The principal object of the. present'invention is to. provide a tailstockturret which can be. applied to various types of lathes, thus increasin the range of application of the lathe andspeedingupproduction. I

Another important object of: the, invention is to. provide a't urret which is notonly capable of being revolved and indexed by actuating. a single handle, but wherein lock" means is, provided and operated bythe same handle. I Qther important objects and advantages of the invention will become apparent to the reader of the following description. i 1

In the drawings:

ret.

Figure 2 is a sideelevationalyiewe v "A Figure 3 is a vertical sectional viewthrcugh the turret.

Figure 4 is a fragmentary bottom plan view;

Figure 1 is a front elevationel viewer the un Figure 5 is a fragmentary detailed sectional view showing one of theiteoliholderssuch as will be applied to the turretv shown in Figulgfhfl- Figure 6 is a side elevational view of a bracket for accommodating the turret on a lathe carriage.

Figure 7 is a rear side elevational view of the bracket shown in Figure 6.

Figure 8 is a vertical sectional viewon the line 88 of Figure 7.

Figure 9 is a cross sectional view on the linein Figures 2 and 3, the present invention emshaft 3| andlug are operated. A stop member 36 is provided on the shaft 3l so that the lug '30 can move no farther away from the nut 34 than V bodies a split socket 8 having ears 9, Ill which i can be drawn together by a screw H for firmly clamping this socket onto the shaftG. Preferably formed integral with the socket 8 is an oblique block I! disposed at 45 degrees angularity with respect to the axis of the socket 8, and this block l2 has an axially disposed threaded bore l3 for receiving the threaded end portion l4 of a core I5.

i The outer side of the block I2 has a boss 15 surrounding this boss, the block is formed with recesses ll. I

Numeral l8 .denotesa rotatable head which has a pocket 19 therein and in this pocket.- is -.1oeeted an annulus 20 having an outwardly taper dlin sidewall 2! against which the beveled'ends era gripping element 22 which is transversely disposed through a slot 23 in the intermediate 1101 tion ofthe core l5, can grip. The core. lines a bore extending longitudinally therein from a point adjacent the socketB. and termina ingine wardly. of the other end, andin this latterend is located a coiled compression spring 25 acting against a plunger 26 which bears againstthe rippin e eme t 22 t n rma y tend to u se hc beveled ends thereof away fromthe tapered inner wall of the annulus 20.

The annulus 20 carries a plurality of re 21, h n end port ons oi wh ch are adaptedto en'gagein the recesses 11. whilethe outer end por'tions'ridegguide bores v23 in the headl8.

Anelongated slide pin 2.8 is. disposedin theremaining portion ofthe bore 24 and is adaptedto be'ur-ged inwardly by a-lu 3J1 Qt! a share 3!, dis.- posed through a bearin 33 carried by a nu which is threadedly disposed on to thethreaded end portion I4 of the core 15' and locked thereto by an Allen set screw or the, like, In this'manner the core andnut." l5. 3% erea were turn A hand lever 35 protogether in the block I2. jects from the shaft 3| and by this lever the isshown in Figure 3, thus permitting the indexing means within the head. l8 to assume the position substantiallyshown in Figure 3 when in released position. As can be seen in Figures 2 and 3, the outer portion of the head l8-is multi-faced.

It can be seen that the $3085 which are denotedby numeral 40 are each in 45 degree ans gularity with respect to the longitudinal axis of the core l4 and each has a recess 4| andthreaded openings 42, 42. I

Figure 5 shows a tool holder 43 having ears 44, 44, apertured to receive machine screws 45, 45 which are driven into the threaded openings 42, and as shown in Figure 5, the inner end of the holder 43 has a boss 46 for snug dispositioninto the corresponding recess 4|. Obviously, by rotating thehead l8, any one of these tool holders 43 j in mam? threaded as at 52 to' accommodate a cap nut 53 which is positively held in place by. a set screw 54. As shown in Figure 9, four plate springs located on pinslB extend between the head I8 and the annulus 20, for the purpose of maintaining the annulus in the position shown in Figure 3.

In the operation of the turret head, let it be assumed that the head is locked as shown in Figure 3, and the handle is in the position as shown in Figures 1 and 3. Without moving the handle 35 in an upward direction-(see Figure 3) the handle is rotated to the right, (with the structureas shown in Figure 1) and this without affecting the pin 29. By pressing upwardly on the handle 35 and returning the handle '35 to its original position adjacent the socket 8, the pin 29 at the start of this motion will move the plate 2|] resulting in the disengagement of the pins 21 from the recesses" and the head will be rotated one index. If more than one index is to be dialed, this operation is repeated the correct number of times. Eachtime the pin 29 is released and the lever 35 moved outwardly and then drawn upwardly and returned. Obviously,.the nut 34 is pinned or otherwise secured to the core I 5.

Itis also desirable to use this turret in connection with lathe carriages and in this connection a special type of bracket generally referred rangement of recesses 61 and prominence 68' through which and the rest of the wall 65 and bore 66 a threaded "bore 69 is formed. It can be seen by comparing Figure 8 with Figure 3, that the numerals 66, 68 and 69 correspond to the numerals 12,15 and I3 of Figure 3.

e The turret 5 is mounted on the structure 66 and 68 in the manner suggested in dotted lines in Figure 6. v

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, ize and materials may be resorted to without departing from. the spirit and scope vof the'invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

311- 'A, tailstockf turret cem' nsmg' attaching,

structure, a block disposed at a 45 degree angle on the attaching structure and having recesses in the face thereof, rotatable head structure having a plurality of tool holder attachable faces thereon, said head being mounted on the block.

' ing by the hand member. v

pins in the head, an annulus carrying said pins, and'manual means for releasing the pins and rotating the head, said means for releasing and rotating the head comprising a hand lever, a core on which the head is mounted, a nut member permanently secured'on said core, a slide'membei' in the .core for operating the pins'and a handle carried by the core nut member and provided with a lug for engaging the slide'member, said core being adapted to be operated for axialturn- 2. -A tailstock turret comprising an attaching structure, a block-disposed at a degree angle on the attaching structure and having recesses in the face thereof, rotatable head structure having a plurality of tool holderattachable facesthereon, said head being mounted on the block, pins in the head, an annulus carrying-said pins, and manual mean'sfor releasing the pins androtating the head, said means for releasing and rotating the head comprising a. hand lever, a core on which the head is mounted, a. nut member per- 'manently secured on said core, a slide member in the core for operating the pins'anda handle by the hand lever, and clutch means between the slide member and the pins, said clutch means comprising a cone shaped gripping element fit ting loosely on said core and adapted for enaging'a correspondinglytapered recess in said annulus. V

' EUGENE ZUELLIG. 

